I often do a laundry basket. Put paper towels or TP in the bottom to kind of fill it up without going to pricey. Then you can put any little items all around the top. Stacked correctly and wrapped up in colored cellophane with a big bow it looks like a big gift without breaking the budget.
I generally include all kinds of items that every house can use, but doesn't have to match anything. Cookie sheets, measuring spoons, bandaids, dryer sheets, thank you cards, Hamburger Helper type dinners, family recipe cards, pictures I may have from when the bride or groom was little, picture hangers, tack hammer, etc.
Depending on your basket size you can go as crazy as you want or you can keep it down to a minimum without looking cheap.